Chase M A, Ewing M E, Lirgg C D, George T R
Department of Physical Education and Exercise Science, Michigan State University, East Lansing.
Res Q Exerc Sport. 1994 Jun;65(2):159-68. doi: 10.1080/02701367.1994.10607611.
The purpose of this study was to examine the effects of modification of basketball size and basket height on shooting performance and self-efficacy of girls and boys 9 to 12 years of age. Subjects (N = 74) completed a self-efficacy questionnaire before and after shooting 10 baskets under four conditions. Shooting conditions were a combination of basketball size (women's or men's) and basket height (10 or 8 ft). Repeated measures analyses of variance indicated that children made more baskets and had higher shooting scores at the 8-ft basket than the 10-ft basket. This was especially evident for girls and 9- and 10-year-old children. Self-efficacy was higher prior to shooting, and boys had higher self-efficacy than girls. Self-efficacy was highest when children shot at the 8-ft basket. These results indicated that basket height modification can positively influence children's shooting performance and self-efficacy.
本研究的目的是考察改变篮球尺寸和篮筐高度对9至12岁男女儿童投篮表现和自我效能感的影响。研究对象（N = 74）在四种条件下各投10次篮前后完成一份自我效能感问卷。投篮条件为篮球尺寸（女子或男子用球）和篮筐高度（10英尺或8英尺）的组合。重复测量方差分析表明，儿童在8英尺篮筐处比在10英尺篮筐处投进更多球且投篮得分更高。这在女孩以及9岁和10岁儿童中尤为明显。投篮前自我效能感更高，且男孩的自我效能感高于女孩。当儿童在8英尺篮筐处投篮时，自我效能感最高。这些结果表明，改变篮筐高度可对儿童的投篮表现和自我效能感产生积极影响。
